[ODE] sphere-mesh and box-mesh crash

[Patrick Enoch]

I experienced crashes. The container with the touched primitives was  
supposedly filled with a lot of
triangles. when checking the triangles, I saw there were indices like  
"0xC0BA1234" and so on... this
certainly causing to crash "FetchTriangle" in the following code...
when testing for the status I saw that the status said "no  
collisions", thus the indices are bogus.

I was able to reproduce the crash, pinning it down to this. there  
should be a check for status in the
other mesh-X colliders as well, I guess.

dont ask me, why there are triangles in the array (some indices are  
in valid range), maybe some temporary
candidates for a second check or so. however, the status is the first  
thing to be checked, i guess...

patrick



On 25. Jun 2005, at 13:45 Uhr, Adam D. Moss wrote:

> Patrick Enoch wrote:
>
>> I just discovered that the collider for sphere-mesh and box-mesh  
>> does  not check the contact status.
>>
>
> True... did you see any benefit in doing so?  This seems quite
> well handled by expecting Collider.GetNbTouchedPrimitives() to
> return 0 if there was no collision, so this is only an optimization,
> right?
>
> --adam
> -- 
> Adam D. Moss   -   adam at gimp.org
> _______________________________________________
> ODE mailing list
> ODE at q12.org
> http://q12.org/mailman/listinfo/ode
>
>